The choice of computer hardware involves primarily: – Hard disk size, Processor speed and Memory (RAM). However, with more and more software becoming “cloud-based” and accessible via the internet (online) this is becoming less of an issue and simple devices e.g. Chromebooks can be used.

In general terms though. Go for as much memory and the highest processor speed within your budget.

Processor

The processor, or central processing unit (CPU) is the part of a computer responsible for responding to and carrying out the sets of instructions necessary to perform operations. The clock speed of a processor measured in Hertz (Hz) is a measure of how quickly the computer can execute these instruction sets. Bandwidth, measured in ‘bits’, relates to the amount of information that can be handled simultaneously by a processor within a given time. Higher clock speed and bandwidth will therefore yield better performance in a machine.

Memory (RAM)

Another important aspect to consider when selecting a system is the amount of Random-Access Memory (RAM) that a machine has. RAM is comparable to the short-term memory in the brain, as it is a temporary storage solution. Various pieces of information are stored flexibly whilst a program is running so that it can be accessed quickly; a linear storage space would take longer for data to be retrieved. Having more RAM, therefore, allows programs to run faster, so again ‘more is better’.

Hard Drive

The hard drive of a computer is used as a permanent storage solution and is used to store files and application data. The more storage capacity a hard drive has, the more information it can contain. The size of a hard drive is measured in bytes; many new desktop computers now come with at least 1 Terabyte of space which is more than adequate for most businesses! Portable hard drives are also available if required, adding even more storage capability to your system.

All software programs give their ‘minimum system requirements’ which are the requirements a computer system must meet to run a piece of software. Some programs give details of ‘recommended system requirements’ which will run the software more effectively if your system can meet them. It is therefore recommended that you check that your systems can meet both the minimum and recommended system requirements of any software applications your business will require.